20252252 has 12 divisors (see below), whose sum is σ = 37306920. Its totient is φ = 9593136.

The previous prime is 20252231. The next prime is 20252273. The reversal of 20252252 is 25225202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20252231) and next prime (20252273).

It is a super-2 number, since 2×20252252² = 820307422143008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133163 + ... + 133314.

It is an arithmetic number, because the mean of its divisors is an integer number (3108910).

Almost surely, 2^20252252 is an apocalyptic number.

It is an amenable number.

20252252 is a deficient number, since it is larger than the sum of its proper divisors (17054668).

20252252 is a wasteful number, since it uses less digits than its factorization.

20252252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266500 (or 266498 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 20252252 is about 4500.2502152658. The cubic root of 20252252 is about 272.5781926381.

Adding to 20252252 its reverse (25225202), we get a palindrome (45477454).

The spelling of 20252252 in words is "twenty million, two hundred fifty-two thousand, two hundred fifty-two".